Home / 15,526.51-21,451.64-10,831.75

Finding the Fourth Proportional to 15,526.51, 21,451.64 and 10,831.75

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Solution

The fourth proportional to 15,526.51, 21,451.64 and 10,831.75 is: 14,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.51 : 21,451.64 = 10,831.75 : x
  2. Step 2: Convert to fraction form
    15,526.51/21,451.64 = 10,831.75/x
  3. Step 3: Cross multiply
    15,526.51x = 21,451.64 × 10,831.75
  4. Step 4: Simplify right side
    15,526.51x = 232,358,801.57
  5. Step 5: Solve for x
    x = 232,358,801.57/15,526.51
  6. Step 6: Final answer
    x = 14,965.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.